ring2nest converts HEALPix pixel indices in the 'ring' ordering scheme to HEALPix pixel indices in the 'nested' ordering scheme.
ring2nest
ring2nest(nside, pix)
is the HEALPix nside parameter (integer number \(2^k\))
is a vector of HEALPix pixel indices, in the 'ring' ordering scheme.
the output is a vector of HEALPix pixel indices in the 'nested' ordering scheme.
# NOT RUN { ## Convert (1,2,23) from ring to nest at nside = 8 nside <- 8 pix <-c(1,2,23) ring2nest(nside,pix) # }
Run the code above in your browser using DataCamp Workspace